Investigation of TiO2 Nanoparticles Influence on Tensile Properties and Thermal Stability of Dry and Wet Luffa-Epoxy Nanocomposites

Abstract

Background: Recently, progress has been made toward understanding the efficiency of polymer composites with natural fibres. With the hope of enhancing the characteristics of polymer composites supplemented with natural fibres in a watery environment, TiO2 nanoparticles have been used to improve their performance in the field. Method: These nanoparticles were filled in luffa-epoxy components at 1, 3, and 5 % volume fractions. A combination of x-ray diffraction and Fourier transform infrared spectroscopy was utilized to conduct the structural examinations. The nanoparticle spread was captured by field emission scanning electron microscopy. Result: Results show that dry nanocomposite's tensile strength and modulus have increased by 74% and, 13%, 137%, and 50% compared with epoxy and 40 vol% luffa-epoxy [E/L] composites, respectively. In wet nanocomposites, maximum reduction in tensile strength and modulus were observed as 27.4% and 16.54%, respectively. The diminished water absorption and thickness swelling percentage of nanocomposites were recorded as 98% and 91.8%, respectively. The onset temperature of these nanocomposites was scattered in the range of 379-393°C, with a maximum char residue of 38%. method: For uniform dispersal of nanoparticles, an ultrasonicator is used, and for the fabrication of nanocomposite, hand layup is adopted. Testing of composites is done as per the ASTM guidelines Conclusion: The increase in the percentage of residue indicates the effectiveness of epoxy's flame retardant, improved thermal stability, diminished water absorption [approximately 2%], and 95% retention of wet composites' tensile properties. These results provided data support for improving the application of nanocomposites in the automobile field. result: The tensile strength and modulus of dry nTiO2 nanocomposite have increased by 74% and 13%, 137% and 50% compared with epoxy and 40 vol% luffa-epoxy (E/L) composites, respectively. In wet nanocomposites, maximum reduction in tensile strength and modulus were observed as 27.4% and 16.54%, respectively. Diminished water absorption and thickness swelling percentage of nanocomposites were recorded as 98% and 91.8%, respectively conclusion: • nTiO2-filled luffa-epoxy nanocomposites have a low percentage of water absorption. Because the nTiO2 effectively contributed to decreasing the hydrophilic nature of luffa fibers. other: The generated luffa-epoxy nanocomposites could serve as an eco-friendly substitute for petroleum-based plastics used in car interiors